专利号:US-9751987-B2 优先权日:2013-08-23 标题:Catalyst for synthesis of siloxanes 发明人:SIVASUBRAMANIAN KARTHIKEYAN; ANDERSON PATRICIA PIKE; KHARE VIVEK 权利人:MOMENTIVE PERFORMANCE MAT INC 摘要:The present technology provides compositions, methods, and processes to form polysiloxanes. In one aspect, the present technology provides a process for the ring opening polymerization of a cyclosiloxane comprising contacting a cyclosiloxane with a N-trialkylsilyl-bis(perfluoroalkylsulfonyl)imide compound.
专利号:US-9683083-B2 优先权日:2013-08-30 标 题:Catalyst for synthesis of siloxanes 发明人:SIVASUBRAMANIAN KARTHIKEYAN; ANDERSON PATRICIA PIKE; KHARE VIVEK 权利人:MOMENTIVE PERFORMANCE MAT INC 摘要:The present technology provides compositions, methods, and processes to form polysiloxanes. In one aspect, the present technology provides a process for the ring opening polymerization of a cyclosiloxane comprising contacting a cyclosiloxane with a bicyclic guanidine compound. The guanidine-containing compounds useful in the ring opening reaction include a fused ring structure comprising a guanidine functional group as part of the fused ring.
专利号:EP-2997074-A1 优先权日:2013-05-17 标 题 :Catalyst for synthesis of siloxanes
专利号:EP-3036272-B1 优先权日:2013-08-23 标 题 :Catalyst for synthesis of siloxanes
参考标题:One-Step Synthesis Of Siloxanes From The Direct Process Disilane Residue 作者:Felix Neumeyer,Norbert Auner |发布日期:2016.11.21 摘要:Direct Process For The Chloromethylsilane Synthesis Produces A Disilane Residue (Dpr) Consisting Of Compounds Mensi2Cl6−n (N=1-6) In Thousands Of Tons Annually. Technologically, Much Effort Is Made To Retransfer The Disilanes Into Monosilanes Suitable For Introduction Into The Siloxane Production Chain For Increase In Economic Value. Here, We Report On A Single Step Reaction To Directly Form Cyclic, Linear